Resolve Section Manager has encountered an unexpected error in MapInfo Discover

Product affected: MapInfo Discover™


When trying to display 3D model on drillhole sections using Drillholes > Section Manager > Display 3D model on selected section(s), the following error appears:

Application Warning - System.DllNotFoundException: Unable to load DLL 'ETSectionClipAPI.dll'.

User-added image


This issue is likely related to the Microsoft .NET Framework prerequisite.


UPDATED: October 30, 2019
1. Navigate to
  • C:\Program Files (x86)\MapInfo\Professional\Discover (prior to version 2013.0.1)
  • C:\Program Files (x86)\Encom\Discover (version 2013.0.1 or later).
  • C:\Program Files\MapInfo\Discover (if this issue occurs in the 64-bit bundle)
2. Rename SectionManager.mbx, e.g. to SectionManager2.mbx.

3. Run Drillholes > Section Manager > Display 3D model on selected section(s) 

If the issue is still not resolved, contact client support.